{
  "manageEntity": {
    "action": "Update",
    "entityId": "799591512",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe18c31d015cc19ed5a72e631be9b8b5e091a1e5fdfa47f9210483f1df3d82066",
    "signature": "0x6431a682fcebdf52c2998b1d8ba58a29d98b3bf26dd84983e3d3288ee10b14b82760609f6ff250876b27c79c3a706121269b1ff5197f91e9c11c9681397b6d3d1c",
    "signer": "0x8e0837a7aB80FDE4193d7eB5eA1c2f81E37b7bF4",
    "userId": "799591512"
  }
}